pfSense

steve_b merged the PR above.

i've further improved the graph by adding dhcp-range as a value (= range_to - range_from).
i've also modify the line-styles to make it look better.

the new version can be found here: https://github.com/pfsense/pfsense/pull/2054

thanks for merging both PR's.

i'll read about the flaws / bugs / problems when you folks find the time to check it out.

the menu item for this isn't showing up on any systems I checked, something missed in the merges there? Only had time for a quick glance at the code.

services_dhcp.php has a checkbox for each individual interface-tab, to enable the graphs. (graphs are disabled by default).

checkbox is located below 'static arp' & 'time format change'

@Chris Buechler
thanks for the fixes.
will try to remember/study them, so you don't have to clean up (as much) in future contributions.